Method for manufacturing stretch frame of outer tent for foldable tent

ABSTRACT

A stretch frame of the outer tent for the foldable tent mainly comprises a clamp support having a rear stretch frame and a lower stretch frame. The latter is allowed to move up and down at the pivot of the clamp support. A clamp pivot connected to the clamp support. The clamp pivot is permitted to move up and down against the clamp support. The clamp pivot has tow front stretch frames which are allowed to move leftward or rightward or combined into one. The rear stretch frame is linked to the upper nest and the lower stretch frame, linked to the lower nest. The front stretch frames extend the outer tent toward in an effort to enhance the outer tent performance.

BACKGROUND OF THE INVENTION

[0001] 1. Field of the Invention

[0002] This invention relates to a method for manufacturing the stretch frame of outer tent for the foldable tent. It particularly offers good insulation, safety, simplified structure, low production cost and long durability.

[0003] 2. Description of the Prior Art

[0004]FIG. 1 illustrates a prior art of “Umbrella Shape Two Layers Foldable Tent” for the applicant has obtained a U.S. Pat. No. 5,871,026 (hereinafter referred to as the patented tent.) The patented tent mainly consists of an inner tent 1 and an outer tent 2; the inner tent serves living room where the camper stays in, and the outer tent serves to reinforce the protection of rainwater and sunlight. Two layers of tent provide better heat insulation and ventilation, healthy for outdoor activity.

[0005] After many years in production of such a foldable tent, the applicant has substantially found that there are many shortcomings in existence which are described below:

[0006] 1) The outer tent 2 is supported and stretched by the branching frame 21, which becomes an obstacle at the entrance 11 of the tent 2, the camper is casually injured by colliding against the point of the branching frame or has the unpleasant feeling when entering the tent.

[0007] 2) The branching frame 21 of the outer tent 2 is extending outward and hanging over the entrance 11, making the entrance low and triangular space, not convenient for the camper to access.

[0008] 3) The outer tent 2 contacts closely to the inner tent which adversely affects the effects of heat dissipation and air ventilation.

[0009] Viewing from the above mentioned shortcomings, the inventor has worked hard for improvement and finally come up with a novel stretch frame of the outer tent for the foldable tent.

SUMMARY OF INVENTION

[0010] The object of the invention is to provide a novel stretch frame of the outer tent for the foldable tent designed with a parallel structure instead of triangular structure over the tent entrance in an effort to gain greater space for the camper to enter without colliding against the point of the branching frame.

[0011] Another object of the invention is to provide a novel stretch frame of the outer tent for the foldable tent in which the collision against the camper who is accessing the tent is likely to take place, the tent will flap up, there is no worry that camper will be hurt by the frame point.

[0012] Another object of the invention is to provide a novel stretch frame of the outer tent for the foldable tent in which it is designed to maintain more space between two layers of tents to gain greater insulation, ventilation and outdoor amenity.

BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings disclose an illustrative embodiment of the present invention, which serves to exemplify the various advantages and objects hereof, and are as follows:

[0014]FIG. 1 shows the prior art of the foldable tent.

[0015]FIG. 2 is a stereo diagram of the stretch frame of the invention.

[0016]FIG. 3 shows the stretch frame of the invention in extended position.

[0017]FIG. 4 shows the cross section diagram of the stretch frame erected in the tent.

[0018]FIG. 5 is the schematic diagram of the invention in complete erection.

[0019]FIG. 6 is the partial sectional schematic diagram of the invention in erection.

[0020]FIG. 7 shows the complete erection of the foldable tent of the invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

[0021] Please refer to FIGS. 2 through 5, the stretch frame of the invention mainly comprises a clamp support 41 which supports a rear stretch frame 42 linked to the upper nest 31 and a lower stretch frame 43 linked to the lower nest 32 of the foldable tent. The lower stretch frame 43 is permitted to move upward and downward at the pivot point of the clamp support 41. The clamp pivot 44 is allowed to move up and down against the clamp support 41. The clamp pivot 44 provides left and right front stretch frames 45, both of them are allowed to move leftward and rightward or combined into one for supporting the outer tent 2.

[0022] Wherein the rear stretch frame 42 and the lower stretch frame 43 are linked respectively to the upper nest 31 and the lower nest 32. Two front stretch frames 45 extend outward and in parallel to the entrance 11 so the entrance 11 presents a rectangular space as the door does convenient for the camper to enter without collision against the front frame point.

[0023] As shown in FIGS. 6 and 7, because there is no branching frame 21 erected over the entrance space, even though the camper, who is tall enough, will come across with the fringe the outer tent 2 in an unexpected situation. If the bump is strenuous enough, the clamp pivot 44 is forced to move upward against the clamp support 41 and the front stretch frames 45 moving outward to alleviate the bump force. After the bump force faded off, the clamp pivot 44 and the front stretch frame 45 will return to the original position and the outer tent 2 recovers.

[0024] In addition, two grommets 46 are provided at the end of the front stretch frame 45 for lining with the guy rope 47 which is fastened to the inner tent 1. The guy rope is elastically aligned with the fringe of the outer tent 2, in case bumping, once the bump force fades away, the guy rope helps recover the outer tent 2 immediately.

[0025] The stretch frame of the outer tent of the invention offer wider and higher entrance, more convenient for the camper to access the tent. In the meantime, the gap between two layers of tents is adequate enough to gain good insulation and ventilation, saving the camper harmless and rendering him more outdoor amenity.

[0026] Many changes and modifications in the above described embodiment of the invention ca, of course, be carried out without departing from the scope thereof. Accordingly, to promote the progress in science and the useful arts, the invention is disclosed and intended only by the scope of the appended claims. 

What is claimed is:
 1. A stretch frame of the outer tent for the foldable tent comprises: a clamp support having a rear stretch frame and a lower stretch frame which is permitted to move up and down; a clamp pivot allowed to move up and down against the clamp support and having two front stretch frames which are allowed to move left ward and rightward or combined into one; the rear stretch frame is linked to the upper nest and the lower stretch frame, linked to the lower nest of the foldable tent. Both frame support the bottom of the outer tent.
 2. The stretch frame of the outer tent for the foldable tent of claim 1, wherein the ends of both front stretch frames provide grommets for connecting the elastic guy ropes which will be fastened on the inner tent so as to reinforce the extension effect of the outer tent. 